WEBENCH® Tools/LM5121: 52Vout/4.8A

Kai Hsiao

Guru 12675 points

Part Number: LM5121
Other Parts Discussed in Thread: LM5122, LM5022, TPS40210, LM5022-Q1, TPS40210-Q1

Tool/software: WEBENCH® Design Tools

dear Sir

I can't use LM5121 to simulate below SPEC ,could you help to confirm ??

Vin=46V~50V to Vout=52V/4.8A

Thanks

over 6 years ago

0 Youhao Xi over 6 years ago

TI__Guru 68495 points

We are going to direct you question to our Webench support group. Thank you.

0 Kai Hsiao over 6 years ago in reply to Youhao Xi

Guru 12675 points

Dear YouHao

I can't use LM5122 to simulate Vin=44V~52V to Vout=52V ,Iout=4.8A

Please kindly help to confirm

Thanks

0 Gerold Dhanabalan - Online Design Tools over 6 years ago in reply to Kai Hsiao

TI__Genius 14455 points

Hi Kai,

We are currently looking into this issue with the LM5121. We will get back to you shortly.

You can try the inputs (46V to 50V Vin, 52V Vout, 4.8A Iout) in WEBENCH and I get the following products (LM5022, LM5022-Q1, TPS40210, TPS40210-Q1) in the solution list.

You could use them if they would meet your requirement.

Regards,

Gerold

0 Kai Hsiao over 6 years ago in reply to Gerold Dhanabalan - Online Design Tools

Guru 12675 points

dear Gerold

Thanks for your reply
I have to use LM5121 or LM5122 to do this ,I prefer to use LM5122
My spec is Vin=44V~52V to Vout= 52V/4.8A for 8port 802.3at PSE
I need to estimate the BOM size as well

Please kindly help to support

Thanks

0 Raghavendra Chavan over 6 years ago

TI__Prodigy 130 points

Hi Hsiao,

We have fixed an issue with the FET junction temperature for this WEBENCH model.
Please try creating the designs once again. Let us know if you have any feedback.

Regards
Raghav

0 Kai Hsiao over 6 years ago in reply to Raghavendra Chavan

Guru 12675 points

dear Raghav

I still can't use LM5122 to simulation for Vin=44V~52V to 52Vout/4.8A
This is for PSE application and very important ,Please kindly help to double confirm

Thanks

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WEBENCH® Tools/LM5121: 52Vout/4.8A